Grandstream ht-503 Benutzerhandbuch

 

Grandstream Networks, Inc. 

Page 25 of 37  

Maximum retransmission interval for non-INVITE requests and INVITE responses. 

This parameter sets the payload type for DTMF using RFC2833 

Send DTMF as inband (in-audio). 

Send DTMF via RTP (According to RFC 2833). 

Send DTMF via SIP INFO message. 

Default is No. If set to yes, flash will be sent as DTMF event. 

Default is Yes. Toggles support for advanced call features and star code functions. 

This parameter allows users to configure a User ID or extension number to be 
automatically dialed when offhook. Please note that only the user part of a SIP address 
needs to be entered here. The HT503 will automatically append the “@” and the host 
portion of the corresponding SIP address.  

Note: User will need this IP address when accessing the IVR via the web configuration 
page. 

SIP Extension to notify SIP server that the unit is behind the NAT/Firewall. 

NAT IP address used in SIP/SDP message.  Default is blank 

Customizes Ring Tones 1 to 3 with an associated Caller ID.  When selected, the device 
will ONLY use this ring tone when the incoming call is set up for Caller ID.  The System 
Ring Tone is used for all other calls.  When selected with no Caller ID configured, the 
selected ring tone will be used for all incoming calls. 

Default is No. 

Default is No. This is to disable the stutter Call Waiting Tone when a Call Waiting 
information arrives. The CWCID information will still be displayed. 

If set to “YES”, the MWI information will not be transferred to the analog phone 
connected to the FXS port.  

Sets the time in which an incoming call will stop ringing when not picked up. 

Default is 4 seconds.  

Default is No.  Use only if proxy supports 484 response.  This parameter controls 
whether the phone will send an early INVITE each time a key is pressed when a user 
dials a number.  If set to “Yes”, an INVITE is sent using the dial-number collected thus 
far.  Otherwise, no INVITE is sent until the “(Re-)Dial” button is pressed or after about 5 
seconds have elapsed.  The “Yes” option should be used ONLY if there is a SIP proxy 
configured and the proxy server supports 484 Incomplete Address response. 
Otherwise, the call will likely be rejected by the proxy (with a 404 Not Found error).   

Note: This feature is NOT designed to work with and should NOT be enabled for direct 
IP-to-IP calling. 

Sets the prefix added to each dialed number. 

This allows users to configure the # key as the “Send” (or “Dial”) key.  If set to “Yes”, “#” 
will send the number.  In this case, this key is essentially equivalent to the “Dial” key.  If 
set to “No”, the “#” key can be included as part of a number. 

Dial Plan Rules: 

1.  Accept Digits: 1,2,3,4,5,6,7,8,9,0 , *, #, A,a,B,b,C,c,D,d 

2.  Grammar: x - any digit from 0-9;   

a.  xx+ - at least 2 digits number;  
b.  xx. – at least 2 digits number; 
c. 

^ - exclude;   

d.  [3-5] - any digit of 3, 4, or 5;   
e.  [147] - any digit 1, 4, or 7;   
f. 

<2=011> - replace digit 2 with 011 when dialing   

• 

Example 1: {[369]11 | 1617xxxxxxx} –  
Allow 311, 611, 911, and  any 10 digit numbers of leading digits 1617   

• 

Example 2: {^1900x+ | <=1617>xxxxxxx} –  
Block any number of leading digits 1900 and add prefix 1617 for any dialed 7 digit 
numbers